The engine is stock internally. I use champion rc9yc plugs. Ironically they are the same plugs I used in my forced induction 5.0 Mustangs. I gap them @ .032. The enricher module allows a richer mixture under part throttle boost when the computer is still trying to stay in closed loop. It is fully adjustable and I have it set around 13 to 1. Under open loop it drops to about 11.8 to 1 and gets as rich as 11.0 as rpm's climb. I still have the fmu on it and either need to change the disk/ratio or remove it all together.
It has been averaging 15 mpg too. 16 before the blower.
The injectors and map sensor are from a grand prix gtp. Performance is phenomenal. It hauls ass for a big Jeep. I can do 75 on the highway with maybe an inch of throttle. I've raced my 318 zj and a 4.0l tj and absolutely smoked them. It was not even close. I can only guess 300ish horsepower.
Last edited by Rob the plumber; December 17th, 2011 at 05:29 AM.